کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1820951 1525788 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New transition in the vortex liquid state of YBa2Cu3O7−δ
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
New transition in the vortex liquid state of YBa2Cu3O7−δ
چکیده انگلیسی
We have carried out angular dependent magneto-transport measurements on optimally doped, untwinned YBa2Cu3O7−δ crystals irradiated with high energy heavy ions to determine the onset of vortex line tension in the vortex liquid state. The dose matching field was controlled and kept at a low level to partially preserve the first order vortex lattice melting transition. A Bose glass transition is observed below the lower critical point which then transforms into a first order phase transition near 4 T. We find that the locus of points which indicates the onset of vortex line tension overlaps with the Bose glass transition line at low fields and then deviates at higher fields, indicating a new transition line in the vortex liquid state. This new line in the vortex liquid phase is dose independent and extends beyond the upper critical point.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 437–438, 15 May 2006, Pages 176-179
نویسندگان
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